Sofa



FIG. 1 is an upper perspective view of the sofa showing my new design in an upright position and with the pillows in a first position;

FIG. 2 is a front elevation view thereof, with the pillows shown in an alternate position;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a side elevation view thereof, an opposite side view being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a front perspective view thereof, showing the sofa in a fully reclined position and the pillows shown in yet another alternate position.

The broken lines shown on the sofa are understood to represent stitching. 

The ornamental design for a sofa, as shown and described. 